Wire-drawing machine.



No. 802,019, PATENTBD'OGT. v17, 1905.

J. H. O'DONNELL.'

WIRE DRAWING MACHINE.

' APELIUATION FILED JAN. 25, 1904.

4 SHEETS-SHEET 1.

Inventor.

Witnesses muniw. B, amum (20., mormumoumwms. wnsmumox, n c.

No. 802,019. PATENTED OCT. 17, 1905. J. H. ODONNELL.

WIRE DRAWING MACHINE.

APPLICATION FILED JAN. 25, 1904.

4 SHEETS-SHEET 2.

Inventor. 9M W Witnesses.

Attorney No. 802,019. PATENTBD OCT. 17, 1905 J. H. ODONNELL.

WIRE DRAWING MACHINE.

APPLICATION FILED JAN. 25, 1904.

4 SHEETS-SHEET 34 i I a 5 v m o W itnesses.

No. 802,019. PATENTBD 0GT.17, 1905. J. H. 0DONNELL.'

WIRE DRAWING MACHINE.

APPLICATION FILED JAN. 25, 1904.

4 SHEETS-SHEET 4.

I ven 10.1.

ALtorne-y Witnesses UNITED STATES PATENT OFFICE.

JOHN H. ODONNELL, OF WATERBURY, CONNECTICUT, ASSIGNOR TO THE VVATERBURY MACHINE COMPANY, OF WATERBURY, CONNECTICUT, A

CORPORATION OF CONNECTICUT.

WIRE-DRAWING MACHINE.

Specification of Letters Patent.

Patented. Oct. 17, 1905.

To all whom, it may concern:

Be it known that 1, JOHN H. ODoNNELL, a citizen of the United States, residing at Waterbury, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Wire-Drawing Machines, of which the following is a specification, reference beinghad therein to the accompanying drawings.

My invention relates to new and useful improvements in draw-benches, and has for its object,among other things,the construction of a draw-bench in which the first operation, commonly called stringing, will be accomplished by simple mechanism preferably operated by airpressure, to provide brake mechanism for the block, means for disengaging the block from its operating mechanism and actuating the brake mechanism at substantially one and the same time, and to provide a superior form of mechanism for connecting the .end of the Wire to the block, and in carrying out these objects to construct a draw-bench of the fewest possible parts so designed as to be economically constructed and readily assembled and manufactured at the minimum price.

To these and other ends my invention consists in the draw-bench having certain details of construction and combination of parts, as will be hereinafter described, and more particularly pointed out in the claims Referring to the drawings, in which like numerals of reference designate like parts in the several figures, Figure 1 is a front elevation of my improved draw-bench. Fig. 2 is a plan view thereof. Fig. 3 is a transverse sectional view. Fig. 4 is a plan view of the mechanism for actuating the clutch and friction devices. Fig. 5 is an elevation of one end of the piston-rod and the slide attached thereto. Fig. 6 is a fragmentary plan View of the block, showing the grip mechanism in detail; and Fig. .7 is a side elevation thereof.

In carrying out my invention I provide a bed-plate 1, which is preferably secured upon a masonry foundation, as is common in the art, and above which is a table 2, that is supported upon the standards 3. Fixed to said bed-plate, adjacent to either end thereof, are the pedestals 4, within which is journaled the shaft 5, having the pulley 7 mounted thereon, and which is held against endwise movement by the collars 6 thereon. Fixed to said bed-plate 1, between the pedestals 4, is the pedestal 8, within which the shaft 5 is also journaled, and Within the cap 9 thereon is journaled the lower end of the vertical shaft 10. This shaft is journaled at its upper end in the bushing 11, which is bolted to the top of the table 2 and has fixed to its upper end the wireblock 12 of a Well-known form and construction and adjacent to its lower end the bevelgear 13.

Rotatable upon the shaft 5 is the bevel-pinion 14, the teeth of which mesh into the teeth of the bevel-gear 13 and Within which is the bushing 15. Endwise movement-of this pinion is prevented by the collars 16, fixed onthe shaft 5. Keyed to the hub of the bevel-pinion 14 is the clutch-ring 17, and fixed to the shaft 5 adjacent to said clutch-ring is the clutch 18, which can be of any preferred form or type and operate in a well-known manner, there being the usual sliding collar 19,through which the clutch arms are actuated. The necessary endwise movement is imparted to the collar 19 through the oscillating lever 20, which is pivotally mounted upon the standard 21, fixed to the bed-plate 1, a link 22 connecting said lever With a crank-arm 23, fixed upon one end of a rock-shaft 24, which is journaled at one end in a block 25 and at the other end in the arm 26 of a bracket 27, which is fixed to the bed-plate 1, a rock-shaft 28, journaled in the arm 29 of said bracket 27 and having a treadle 3O fixed thereto, and a mitergear 31, which meshes into a miter-gear 32, fixed upon the rock-shaft 24. When it is desired to start the block, foot-pressure is exerted upon the treadle 30, and through the mechanism above described the shaft 24 is r0- tated a sufiicient distance to rock the arm 23, and through the link 22 the lever 20.is oscillated and the collar 19 shifted so as to cause the clutch-arms to engage the clutch-ring 17, thus rotating the pinion 14 and the shaft 15 and block 12 through the bevel-gear 13. By operating the treadle 30 in the opposite direction the clutch mechanism is released. The friction mechanism for instantaneously stopping the rotation of the block comprises the lever 33, which is pivotally mounted upon the arm 34 of the pedestal 8 and having a pressurefoot 35 thereon, which is preferably covered with a leather strip 36, (see Fig. 3,)and a block 37, adjustably secured to the link 22 in any preferred manner. The link 22 is moved to the left, as shown in Fig. 1,'to release the clutch mechanism, and during this movement the block 37, which is fixed to said link, engages the downwardly-projecting arm of the lever 33 and causes the same to oscillate upon its pivot-mounting and brings the leather strip 36 upon the pressure-foot 35 in engagement with the interior of the clutch-ring 17, as shown in Fig. 1, which friction is sufficient to substantially stop the rotation of said clutch-ring instantaneously and through it the block 12. As soon as the pressure is removed from the treadle 30 the spring 38, which is connected at one end to the lever 33 and at the other end to the pedestal 8, imparts a return oscillation to the lever 30 and removes the friction upon the clutch-ring. This construction, it will be noted, is such that the friction is off when the clutch is in operation; but as soon as it has been released the friction mechanism is actuated.

In the drawings I have illustrated but one block and what is called in the art one isection; but I desire it to be understood that a plurality of blocks and sections can be added, if desired, it being simply necessary to lengthen the shaft and bolt the several sections together.

In applying my improved gripping mechanism to the block ,1 construct a flat face 41 upon one side of said block, and projecting inwardly from the inner side thereof is aboss 40, within which is journaled the shaft 39, having on one end an eccentrically-mounted toothed roll 42 and upon the other end a handlever 43. Driven tightly into said block below the roll 42 is the plug 44, the head 45 of which is provided with teeth, as shown in Fig. 7. It is apparent that the rotation of the eccentric stud 42 will vary the space between the periphery thereof and the toothed head 45 and that by the hand-lever 43 this rotation is accomplished. This gripping mechanism is actuated by the movement of the lever 43, so as to permit the entrance of one end of the wire to be drawn between the roll 42 and block 45, after which the lever 43 is moved so as to rotate the roll 42 and cause the same to pinch the wire between it and the head 45, the mounting of said roll being such that when the block is started the pull upon the wire will have a tendency to tighten the grip, and thus hold it more securely. Pivotally mounted at its lower end to a bracket 46 is a grip-lever 47, which projects through the longitudinal slot 71 in the table 2, and to the upper end of which is secured the grip 48, which can be of any preferred type, the details of which are not material to my invention. The lever 47 is moved in one direction by means of mechanism actuated by compressed air, which is not shown in detail, as its minor details of construction are not material to my invention, but as herein constructed comprises a cylinder 49, which is secured between brackets 50, which are secured to the under side of the table 2 and within which is operative a piston 51, having a slide 52 fixed to its outer end that is slidably mo unted in the downwardly-depending bracket 53, integral with said table and held therein by the cap 54. To the block 52 is rotatably mounted the roll. 55 upon the stud 56, the roll 55 being movable in the path of the grip-lever 47. Compressed air is admitted to either end of the cylinder 49 and exhausted therefrom through the valve 57 and pipes 58 in a wellknown manner. The valve 57 is actuated through the rock-arm 59, connected therewith, link 60 connecting said rock-arm 59 with the rock-arm 61, fixed upon one end of the shaft 62, which is rotatably mounted in the arm 63 upon the brackets 64. The shaft 62 is rocked through the miter-pinions 65 and 66, the pinion 66 being mounted upon a rockshaft 67, to the other end of which is fixed the treadle 68. It is apparent that by exerting a foot-pressure upon the treadle 68 the shaft 67 will be actuated, which motion is transmitted, through the bevel-pinions 65 and 66, to the rock-arm 61 and, through the link 60, to the rock-arm 59, thereby actuating the valve mechanism.

Pivotally secured upon the top of the table 2 in advance of the block 12 is the dieholder 69.

In drawing wire with my improved drawbench the end of the wire is first inserted through the die and into the grip 48, at which time by pressure upon the treadle 68 the valve mechanism is operated, so that the piston will be drawn inwardly, and the engagement of the roll 55 with the grip-lever 47 causes the grip-lever 47 to swing upon its pivot-mounting and draw the wire through the die until the grip assumes the position shown by dotted lines in Fig. 1, when the movement of the treadle 68 is reversed and the current of air out off, and the lever 47 will then remain in a stationary position. This operation in the art is commonly called stringing. The end of the wire is now removed from the grip and inserted between the roll 42 and plug 44, as before described, after which, by pressure upon the treadle 30, the friction mechanism is actuated and a rotary movement imparted to the block, which rotary movement of course continues to draw the wire through the die and wind the same about itself. l/Vhen the roll of wire has been completely drawn, the actuation of the treadle 30, as before described, will cause the block to stop substantially instantly, and the roll of drawn wire can then be readily removed. If perchance during the drawing of the roll the wire should break, or

if for any other reason it be necessary to stop the block, it can be done substantially instantaneously by the mechanism above described.

In Fig. 1 the mechanism between the bedplate 1 and table 2 is shown as being exposed; but in practice I preferably protect the'same and those employed upon the bench against accident by securinga guard 7 0 in front thereof, as shown in Fig. 3, which guard is preferably made of wood, but can be made of sheet metal, if desired.

There are many minor changes and alterations that can be made within my invention aside from those herein shown and suggested, and I would therefore have it understood that I do not limit myself to the exact construction herein shown and described, but claim all that falls fairly within the spirit and scope of my invention.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a draw-bench, the combination of a suitable framework; a wire-block; adie-holder; a grip; a grip-lever; a pneumatic cylinder; a piston operative within said cylinder; means connected with said piston for engaging said grip-lever; valve mechanism for controlling the movement of air within said cylinder; and means for operating said valve mechanism.

2. In a draw-bench, the combination of a suitable framework; a wire-block; means for rotating the same; a dieholder 69 mounted on said framework; a pivotally-mounted griplever 47; a grip 48 connected with said griplever; a pneumatic cylinder 49; a piston 51 operative within said cylinder; and a roll 55 connected with said piston and movable in the path of movement of said grip-lever.

3. In a draw-bench, the combination with a suitable framework; of a wire-block; a dieholder; a grip; a pneumatic cylinder; treadleactuated mechanism for controlling the valve mechanism of said cylinder; a piston operative within said cylinder; a grip-lever; and means connected with said piston for frictionally engaging said grip-lever and moving the same during the movement of said piston.

4. In a draw-bench, the combination of a suitable framework; a.wire-block; means for rotating the same; a die-holder mounted on said framework; a pivotally-mounted grip-lever; a grip connected with said grip-lever;

a pneumatic cylinder; a piston operative with- JOHN H. ODONNELL.

Witnesses:

FREDERICK E. CHAPMAN, ROGER S. Wo'rKYNs. 

